Results 51 to 60 of about 243,128 (206)
Co-estimation of geomagnetic field and in-orbit fluxgate magnetometer calibration parameters
Earth, Planets and Space, 2020 For the past 20 years, state of the art geomagnetic core field models have relied heavily on magnetic measurements made from space-based instrumentation.
Patrick Alken +2 more
doaj +1 more source
The Reliability of HF Propagation Links Over Canada During Absorption Events
Space Weather, Volume 24, Issue 10, October 2026.Abstract Natural Resources Canada monitors space weather impacts to high frequency radio wave propagation using several High Frequency transmitter/receiver links across Canada. HF data received in Alert from a transmitter in Ottawa are examined in this study.
R. G. Gillies +5 more
wiley +1 more source
Peculiarities of the geomagnetic field secular variations at the 20th solar activity cycle
Геофизический журнал, 2018 The decrease of solar and; correspondingly; geomagnetic activities at the 20th cycle has reflected on the secular variations of the geomagnetic field. On the continental magnetic observatories of the Earth north hemisphere (Europe and North America) the
T. P. Sumaruk, P. V. Sumaruk
doaj +1 more source
Schumann Resonance Frequency Increase Following Recurrent Solar Wind Stream Onsets
Earth and Space Science, Volume 13, Issue 10, October 2026.Abstract Recurrent high‐speed streams and corotating interaction regions (HSS/CIRs) are common solar‐wind drivers, but their influence on Schumann resonance (SR) frequencies remains poorly quantified. We analyzed 173 threshold‐defined HSS/CIR proxy onsets using superposed epoch composites, bootstrap uncertainty, and a month‐matched random‐epoch null ...
J. Tacza +4 more
wiley +1 more source
, 1997 There has recently been much discussion of large-scale interactions of fault zones and the influence of large-scale processes in the preparation and triggering of earthquakes.
Popeskov, M.
core +1 more source
Microseismic background conditions and their relationship with the geomagnetic field at the yangibozor observatory during 2021–2025 [PDF]
E3S Web of ConferencesThe Yangibozor Experimental Research Observatory is an important geophysical observation site in Uzbekistan, where seismic, microseismic, and geomagnetic observations are conducted.
Ruzimboyev Farrukh +2 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract In space physics, acronyms for coordinate systems (e.g., GEI, GSM) are commonly used; however, differences in their definitions and implementations can prevent reproducibility. In this work, we compare definitions in online resources, software packages, and frequently cited journal articles and show that implementation differences can lead to ...
R. S. Weigel +8 more
wiley +1 more source
Historical evolution of the geomagnetic declination at the Royal Observatory of Madrid [PDF]
History of Geo- and Space SciencesThe agonic line, which represents geomagnetic declinations of 0°, recently crossed the Royal Observatory of Madrid (ROM) in December 2021, causing a shift in declination values from west to east.
J. M. Tordesillas +5 more
doaj +1 more source
Space Weather, 2020 We present a case study on the long‐period ( >105 s) induced geoelectric field disturbance during magnetic storms. A set of continuous 33‐day measurements of the geoelectric field, geomagnetic field, geomagnetic indices, and interplanetary magnetic field
S. Y. Wu +10 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract Ionospheric currents and their associated magnetic perturbations are difficult to predict due to the high variability of their driving mechanisms. In addition, the 3D structure of the currents is challenging to unravel due to the lack of direct observations within the current flow region, particularly in the E $E$‐layer.
P. Alken +6 more
wiley +1 more source